It is an annual event, obligatory on those Muslims who can afford to undertake it, at least once in their lifetime. It is a pilgrimage (journey) to the "House of Allah" (Al-Ka'bah) in Mecca, Saudi Arabia, in the twelfth month of the Islamic calendar.

Hajj symbolizes the unity of humankind; Muslims from every race and nationality assemble together in equality and fraternity to worship their Lord.